What is the UV index? An expert explains what it means and how it's calculated
You've probably seen the UV index in the day's weather forecast, and you know it tells you when you need to cover up and wear sunscreen.
You've probably seen the UV index in the day's weather forecast, and you know it tells you when you need to cover up and wear sunscreen.
Environment
Dec 21, 2021
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32
Astronomers using the upgraded Karl G. Jansky Very Large Array in New Mexico have produced the most detailed radio map yet of the atmosphere of Jupiter, revealing the massive movement of ammonia gas that underlies the colorful ...
Space Exploration
Jun 2, 2016
3
1200
(PhysOrg.com) -- Scientists in the US have solved the mystery of how peat mosses manage to get their spores high enough to catch the wind, discovering that they produce vortex rings of air, like miniature "mushroom clouds" ...
One of the great mysteries of modern space science is neatly summed up by the view from NASA's Perseverance, which just landed on Mars: Today it's a desert planet, and yet the rover is sitting right next to an ancient river ...
Planetary Sciences
Apr 26, 2021
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4796
Its been said that the Universe isnt stranger than you can imagine, its stranger than you cant imagine. Nowhere is this more true than the study of stars. Recently, a team of scientists from the Armagh Observatory ...
Astronomy
Dec 8, 2010
12
0
As temperatures warm, plants release gases that help form clouds and cool the atmosphere, according to research from IIASA and the University of Helsinki. The new study, published in Nature Geoscience, identified a negative ...
Environment
Apr 28, 2013
11
0
Venus is known for its clouds of sulfuric acid covering the entire planet and its super-fast winds moving at hundreds of kilometers per hour, but our neighboring planet's thick clouds make it difficult for scientists to peer ...
Space Exploration
Apr 30, 2019
1
136
Planes flying over rain or snow can intensify the precipitation by as much as 10-fold, according to a new study.
Earth Sciences
Jan 31, 2019
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138
As turboprop and jet aircraft climb or descend under certain atmospheric conditions, they can inadvertently seed mid-level clouds and cause narrow bands of snow or rain to develop and fall to the ground, new research finds. ...
Earth Sciences
Jun 14, 2010
1
0
A single crescent moon is a familiar sight in Earth's sky, but with Saturn's many moons, you can see three or even more.
Space Exploration
Jun 23, 2015
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96